Table 1.
Characteristics of extubation failure and extubation success groups (N = 140)
| Characteristic | n (%) | P value | |
|---|---|---|---|
| ES (n = 106) | EF (n = 34) | ||
| Gestational age <28 weeks | 35 (33.0) | 19 (55.9) | 0.029* |
| Male gender | 58 (54.7) | 20 (58.8) | 0.825* |
| Mean 1-minute Apgar ± SD | 5.98 ± 2.22 | 4.88 ± 2.38 | 0.023† |
| Mean 5-minute Apgar ± SD | 8.10 ± 1.62 | 7.72 ± 1.63 | 0.117† |
| Mean birth weight in kg ± SD | 1.44 ± 0.82 | 1.34 ± 0.73 | 0.448† |
| Mean weight at intubation in kg ± SD | 1.46 ± 0.85 | 1.32 ± 0.70 | 0.481† |
| Mean weight at extubation in kg ± SD | 1.45 ± 0.82 | 1.33 ± 0.76 | 0.370† |
| Patent ductus arteriosus‡ | 39 (36.8) | 21 (61.8) | 0.018* |
| Intraventricular haemorrhage‡ | 14 (13.2) | 5 (14.7) | 1.000* |
| Caffeine | 78 (73.6) | 27 (79.4) | 0.649* |
| Median day of life at intubation (IQR) | 1 (0) | 1 (0) | 0.798§ |
| Median day of life at extubation (IQR) | 3 (5) | 2.5 (6) | 0.965§ |
| Median total mechanical ventilation in days (IQR) | 3 (4) | 16 (26.5) | 0>.001§ |
| Median length of hospital stay in days (IQR) | 54.5 (38.8) | 67 (54.3) | 0.01§ |
ES = extubation success; EF = extubation failure; SD = standard deviation; IQR = interquartile range.
*
Using Chi-square test.
†
Using independent sample t-test.
‡
Grade and diagnosis data were not collected.
§
Using Mann-Whitney U test.